I see several people on here wanting power supplies to push major wattage diodes with 20 and 30 amp power supplies. I have a PSU that is 3-15v 40a, a 24v 50a, 48v 25a and 2 5v 150a. I would like to make 2 regulators, 1 that would be adjustable from 0-60v 0-50a and one that would be 0-18v 0-320a. I want to make an enclosure for the 2 large current power supplies and parallel them for 300A so I could run several of my diode bars at once from it with the voltage down to 2.2-2.8 for them. The second one would be for use with all of my other PSU and would be boxed by its self. I saw one post where the member used power amps to get the amps up, would that be better or would it be better to use high current regulators in parallel to get the current high? I know I dont need to make current, so regulators would be best for my setup probably. I have digital displays picked out and would like one for V and one for A, also want voltage and current to be adjustable preferrably down to 0 for both. I dont know enough about electronics to design my own setup, but I have been browsing the net and I feel confident that I can build this with a little guidance. I will be making the box and all heat sink my self, I have a mill and plenty of aluminum and steel. I will also be making a liquid cooled unit to mount the bars to. I will appreciate any help or positive information any one has to offer.